#1 specialize v. [specialise, narrow, narrow down] become more focus on an area of activity or field of study; "She specializes in Near Eastern history". wn
#2 specialize v. [specify, particularize, particularise, specialise] be specific about; "Could you please specify your criticism of my paper?". wn
#3 specialize v. [specialise] suit to a special purpose; "specialize one's research"; "this kind of beak has become specialized in certain Galapagos finches". wn
#4 specialize v. [specialise] devote oneself to a special area of work; "She specializes in honey bees"; "This baker specializes in French bread". wn
#5 specialize v. [speciate, differentiate, specialise] evolve so as to lead to a new species or develop in a way most suited to the environment. wn
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